1 1Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095 USA.
2 2Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095 USA.
3 3Pasarow Mass Spectrometry Laboratory, University of California Los Angeles, Los Angeles, CA 90095 USA.
4 4Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA 90095 USA.
5 5Office of Laboratory Animal Care, University of California Berkeley, Berkeley, CA 94720 USA.
6 6UCLA Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California Los Angeles, Los Angeles, CA 90095 USA.
7 7Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095 USA.
8 8Department of Biological Chemistry, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095 USA.
9 9The VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073 USA.